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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3008223 times)
samsonn25
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June 26, 2014, 08:42:43 PM
 #36061

overpriced JUNK  


I hope you guys know what are you doing.

So there is 2 problems.  Power delivery and heat from current.  Maybe 5 psu at 550 or 650 watts.  And quality connectors and wiring.
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June 26, 2014, 08:43:51 PM
 #36062

Just ask for refund for my titan order and they say all sales are final...g KNC become so lame company and tread customers as slaves ...

Why would you ask for a refund? KnC said from Day 1 there would be no refunds on Titans.

Yes have to read all fine print. They love adding loopholes.
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June 26, 2014, 09:03:17 PM
 #36063

Somebody PM'ed me asking for pics of how I soldered a second connector. Well, I don't have any but here is how it looks from the outside. Basically I bought PCI-e splitters from eBay and sacrificed them for the female receptacles. I used 14 AWG black and yellow wires and soldered those to the bottom of board under the location of the original connector.



Exactly the plan I am implimenting now.
DPS-2000 to bus bars then wires direct from bus bar to miner.
No more quick disconnect on PSU for me, I'll need a screw driver.

YMMV
Smiley

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June 26, 2014, 09:18:52 PM
 #36064

@ Soros Shorts

I suggest a case grommet for your power wires.
The case is thin enough to cut insulation.

You could make one with about 2 inches of 3/8 or 1/4 ID tubing.
Split it lengthwise and install around hole in case.

YMMV
Smiley

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June 26, 2014, 09:46:30 PM
 #36065

The Neptune looks big like a cpu case.
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June 26, 2014, 10:11:59 PM
 #36066

Some news from one of KNC's engineers on IRC

Should be a new firmware tomorrow.

The LCD screen can be removed and another cube plugged in, no idea if they will actually sell extra one's though.  It's a waste of a port and I don't care about the screen so personally I'd buy one if the price was right.

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June 26, 2014, 11:12:45 PM
 #36067

Some news from one of KNC's engineers on IRC

Should be a new firmware tomorrow.

The LCD screen can be removed and another cube plugged in, no idea if they will actually sell extra one's though.  It's a waste of a port and I don't care about the screen so personally I'd buy one if the price was right.

That LCD is neat but they definately lit the candle on both ends with the backlight.

I forgot all about the IRC channel.
Lots of good info there last time around.

I always had fun wording questions to KnC in a way that leaves no wiggle room.
(often the questions go unanswered but that is an answer too)
Admittedly I often asked about proprietary details.
They are very close to the vest with that info in public fora.

Last new product from KnC I spent first week playing with OS.
This time it's power and cooling.
(huge box from FrozenCPU when I got up this afternoon, I 'work' graveyard btw)
Soon time to take the plunge and lap an ASIC that is installed on a PCB.

One more tidbit/detail re: ASIC cooling.

They use a 55mm carrier but the raised area is only 40mm
16^2 cm instead of >25^2 cm

They skimped on ASIC heatspreader, hehe, I coulda won a bet on that one.
In fairness to KnC it IS good enough for stock speeds.

YMMV
Smiley

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June 26, 2014, 11:17:26 PM
 #36068

my neptune crash down when i put 400 mhz and more\


whst to do
i had 2 corsair 1200 i
but i think is awful psu fina;
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June 27, 2014, 12:17:19 AM
 #36069

my neptune crash down when i put 400 mhz and more\


whst to do
i had 2 corsair 1200 i
but i think is awful psu fina;
Try one AX1200i per two Neppy modules?

I bought two AX1200i in preparation for my Neptune as KnC said that two 1200W PSUs would be sufficient. Looks like I need to buy a third PSU as the AX1200i reportedly struggles on startup when powering three modules.

PS I have my tracking number for my first-day Neptune order (2013 November 26 23:16).

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June 27, 2014, 12:24:35 AM
 #36070

my neptune crash down when i put 400 mhz and more\


whst to do
i had 2 corsair 1200 i
but i think is awful psu fina;

Can u run 2 cubes on one 1200i at 475 MHz ?
If this works just get a new smaller PSU for 1 cube.

Can u run 3 cubes on one 1200i IF THE OTHER ONE IS OFF?
You might be starving your AC circuit.
If you have a HEAVY DUTY 12/3  extension cord try one PSU on a different outlet.
copper house wire can corrode if the wall outlet screws are not tightened properly
(thats a hard one to troubleshoot)

You might try a housefan on the PSUs?

With Corsair it has been suggested to use only the DOUBLE PCIe cables
but
USE ONLY THE FIRST(closest to PSU) OF the 2 PCIe CONNECTORS
16AWG to first connector and 18AWG to second
I know as fact my Corsair single PCIe cables are only 18AWG
(lower is better for AWG)
I have AX760's but the replacement cables are same part numbers
I ran 2 cubes on 1 760 briefly 10-15 minutes hashing @ 475 MHz

Try possible solutions that do not involve spending lots of money FIRST. Smiley
Else throw money at bigger PSU's

Thx again u27 for that Corsair wire gauge detail!

YMMV
Smiley

EDIT
Run them 2 at a time and identify WATT for each cube
Try the 3 lowest watt cubes on one PSU
Try same 3 lowest watt on other PSU
Subdivide and conquor! Smiley

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June 27, 2014, 12:33:05 AM
 #36071

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
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June 27, 2014, 12:43:02 AM
 #36072

couldn't resist...



Looks like I'm going to be fiddling with setting up a couple Neppies on Maui, and we have the ax1200's already, lol. Oh well.


Is neptune supporting hot-plug to the PSU? There are only 2-3 PSU to power up 5 asic box and 1 controler. How to power on ASIC box one after another? Isn't it too dangerous to just plug the PSU power cable to the box with bare hands?

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June 27, 2014, 12:58:49 AM
 #36073

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

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crashoveride54902
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June 27, 2014, 01:13:46 AM
 #36074

still can't believe they designed this case w/o knowing that the bottom of the pcb is the hottest part Sad do they even have smart ppl making these things?

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June 27, 2014, 01:19:13 AM
 #36075

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!
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June 27, 2014, 01:21:35 AM
 #36076

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force the air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!

oh ya there is...taking them out of the case n raise'em up would do wonders...and cooler vrms = less watts Smiley

Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks Sad
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June 27, 2014, 01:25:22 AM
 #36077

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force the air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!

oh ya there is...taking them out of the case n raise'em up would do wonders...and cooler vrms = less watts Smiley

And if they're removed from the cases then they will definitely need a fan directly connected to the radiator.
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June 27, 2014, 01:33:31 AM
 #36078

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force the air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!

oh ya there is...taking them out of the case n raise'em up would do wonders...and cooler vrms = less watts Smiley

And if they're removed from the cases then they will definitely need a fan directly connected to the radiator.

idk how hot the radiator gets but on my nov units...i don't have a fan on them and they are just fine...the fan is still in front of the whole unit so its still getting air flow...they aren't even warm to the touch and i have them oc'd to 335 setting on padrinos FW so i guess i'm doing something right Cheesy

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June 27, 2014, 02:08:04 AM
 #36079

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force the air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!

oh ya there is...taking them out of the case n raise'em up would do wonders...and cooler vrms = less watts Smiley

And if they're removed from the cases then they will definitely need a fan directly connected to the radiator.

idk how hot the radiator gets but on my nov units...i don't have a fan on them and they are just fine...the fan is still in front of the whole unit so its still getting air flow...they aren't even warm to the touch and i have them oc'd to 335 setting on padrinos FW so i guess i'm doing something right Cheesy

idk about november units, as my jup is an october version with 2 chips that have a 0-die problem. there was a certain firmware v kncminer-0.98.1(beta) that would get mine to 550, but I had to restrict the airflow and get into the 75-80 degree range before it would hash at that rate. (any cooler and it would barely reach 400.)

recently I tried the new firmware cuz the advanced tab looked really cool, but now 2 of the chips only run with 3 out of 4 cores active. if I try to tweak the voltage and stuff to try to kick-start them, then the 0 core will turn on, but the other three turn off...

I tried to flash back, but it will not run at all with the old firmware anymore, so it's down to only 500 GH/s now. Sad

quite frustrating and counter-intuitive that a piece of computer hardware would run better when hotter, just bakes my brain.

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xstr8guy
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June 27, 2014, 02:35:35 AM
 #36080

Are there no fans attached directly to the radiator? Really?! Does the case only have a single intake fan?
There is foam between heatsink and case.
Most of the fan air goes right thru heatsink.
The cubes are OK air tunnels, they work at 80F/26C ambient, lol.
The PCIe hole is on the fan side of heatsink and has good air pressure.
Frugal as they are this one makes sense.
On a "BTC miner noise scale" they are quiet.

YMMV
Smiley

So the air can't be directed around of the side, top or bottom of the heatsink at all? Still, a fan should be directly connected to the radiator to force the air through the radiator fins.

And so there is only the intake fan then, not even an exhaust fan for push-pull cooling? Even a fan connected to pull cool air through the radiator would be better than just a single case fan. I see a lot of room for improvement in cooling these units!

oh ya there is...taking them out of the case n raise'em up would do wonders...and cooler vrms = less watts Smiley

And if they're removed from the cases then they will definitely need a fan directly connected to the radiator.

idk how hot the radiator gets but on my nov units...i don't have a fan on them and they are just fine...the fan is still in front of the whole unit so its still getting air flow...they aren't even warm to the touch and i have them oc'd to 335 setting on padrinos FW so i guess i'm doing something right Cheesy

And you don't have 350 watts running through a Nov Jup chip like a Neptune has. And just because a Jupiter ASIC loves heat doesn't mean a Neptune ASIC necessarily does.
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